{
  "project": "FESA Structural Solver",
  "phase": "nonlinear-static-newton-raphson",
  "steps": [
    {
      "step": 0,
      "name": "cli-output-lease-and-derived-names",
      "status": "completed",
      "summary": "Derived lexical sibling result/log paths, removed --output, and added an exclusive output lease with regression coverage.",
      "started_at": "2026-08-24T01:41:01+0900",
      "completed_at": "2026-08-24T10:42:14+0900"
    },
    {
      "step": 1,
      "name": "nonlinear-static-domain-contract",
      "status": "completed",
      "summary": "Mapped NLGEOM static procedure identity and raw controls while keeping PRESELECT output requests warning-only no-ops.",
      "started_at": "2026-08-24T10:42:14+0900",
      "completed_at": "2026-08-24T13:17:17+0900"
    },
    {
      "step": 2,
      "name": "finite-rotation-state",
      "status": "completed",
      "summary": "Added checked SO(3) finite-rotation state, Jacobians, branch rejection, and unit coverage.",
      "started_at": "2026-08-24T13:17:18+0900",
      "completed_at": "2026-08-24T13:26:00+0900"
    },
    {
      "step": 3,
      "name": "nonlinear-mitc4-kinematics-and-recovery",
      "status": "completed",
      "summary": "Added nonlinear MITC4 fixed-reference kinematics, MITC recovery rows, and finite-rotation/objectivity coverage.",
      "started_at": "2026-08-24T13:26:00+0900",
      "completed_at": "2026-08-24T13:36:34+0900"
    },
    {
      "step": 4,
      "name": "nonlinear-mitc4-residual-and-tangent",
      "status": "completed",
      "summary": "Added same-trial nonlinear MITC4 internal residual/tangent with objective drilling and directional, symmetry, objectivity, patch, and nonfinite coverage.",
      "started_at": "2026-08-24T13:36:35+0900",
      "completed_at": "2026-08-24T14:00:06+0900"
    },
    {
      "step": 5,
      "name": "load-boundary-path-and-convergence-gates",
      "status": "completed",
      "started_at": "2026-08-24T14:00:07+0900",
      "summary": "Implemented fixed nonlinear load/boundary control, external tangent assembly, and typed Newton convergence gates with regression coverage.",
      "completed_at": "2026-08-24T14:13:14+0900"
    },
    {
      "step": 6,
      "name": "backend-neutral-tangent-solver",
      "status": "completed",
      "started_at": "2026-08-24T14:13:14+0900",
      "summary": "Added an unsymmetric full-CSR PARDISO tangent solver with fail-closed pivot handling and regression coverage while preserving SPD solver behavior.",
      "completed_at": "2026-08-24T14:25:05+0900"
    },
    {
      "step": 7,
      "name": "newton-iteration-log-writer",
      "status": "completed",
      "started_at": "2026-08-24T14:25:05+0900",
      "summary": "Added fixed-schema Newton iteration log serialization with fail-closed file lifecycle and regression coverage.",
      "completed_at": "2026-08-24T14:34:19+0900"
    },
    {
      "step": 8,
      "name": "nonlinear-state-commit-rollback",
      "status": "completed",
      "summary": "Added transactional nonlinear committed/trial state with stable full source identities, validated accepted frames, and rollback regression coverage.",
      "started_at": "2026-08-24T14:34:19+0900",
      "completed_at": "2026-08-24T14:52:08+0900"
    },
    {
      "step": 9,
      "name": "nonlinear-hdf5-schema-v1-writer",
      "status": "completed",
      "summary": "Added atomic schema-v1 nonlinear HDF5 accepted-frame output with deterministic diagnostics and regression coverage.",
      "started_at": "2026-08-24T14:52:08+0900",
      "completed_at": "2026-08-24T15:19:06+0900"
    },
    {
      "step": 10,
      "name": "prepared-analysis-flow-and-full-procedure",
      "status": "completed",
      "summary": "Prepared parse-once analysis flow, separated linear/nonlinear procedures, and delayed HDF5 finalization until log close.",
      "started_at": "2026-08-24T15:19:07+0900",
      "completed_at": "2026-08-24T15:49:07+0900"
    },
    {
      "step": 11,
      "name": "equilibrium-projection-and-reference-gate",
      "status": "completed",
      "summary": "Verified accepted current-arm spatial balance output and the comparator-only inclusive 1e-8/zero-scale global balance gates with focused boundary and schema/procedure checks.",
      "started_at": "2026-08-24T15:49:08+0900",
      "completed_at": "2026-08-28T09:22:33+0900"
    },
    {
      "step": 12,
      "name": "execution-closure-and-evidence-docs",
      "status": "completed",
      "summary": "Collected fresh MSVC/CTest and nonlinear reference evidence, wrote Stage 6 reports, and synchronized directly superseded documentation contracts.",
      "started_at": "2026-08-28T19:44:23+0900",
      "completed_at": "2026-08-28T21:08:58+0900"
    }
  ],
  "created_at": "2026-08-24T01:41:01+0900",
  "completed_at": "2026-08-28T21:08:58+0900"
}